Basically what they seem to have done is, instead of it being dark grey lines, it's now a very, very small micro grid of hashes and spots which darken colors. Far FAR less noticeable, you have to really look for it to see it.
Look at this image. People with the grey lines issue would see the lines over the entire top half of this image, as well as some of the shoulders of the village men. If you can remember what your lines looked like, and look very closely, you'll notice it's now turned to a very faint grid.
It's an awesome improvement and I don't think I'll be taking it further or trying to improve it more unless needed. I'm sticking to this driver and keeping it backed up in a safe place.
To see properly, you must open this image below to full size 1:1 resolution
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